Vacuum cleaner



FIG. 1 is a front, perspective view of a vacuum cleaner according to my novel design;

FIG. 2 is a rear, perspective view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a front perspective view thereof, including a hose in broken lines for illustrative purposes only.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a vacuum cleaner, as shown and described. 